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In this activity, learners explore their eye pupils and how they change.

In this game-like activity (5th activity on the page), learners explore their auditory acuity as well as the importance of having two ears.

In this activity, learners observe what happens when they give a light source like a neon glow lamp a "Bronx Cheer." The lights appear to wiggle back and forth and flicker when learners blow air throu

In this activity, learners will explore how the voice works and feel the vibrations produced by vocal cords.

In this optics activity, learners experiment with polarizers (small dark rectangles) to examine light intensity.

In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.

In this game (4th activity on the page) about hearing, learners test their ability to identify various sounds without looking.

In this activity related to the famous "Stroop Effect," learners explore how words influence what we see and how the brain handles "mixed messages." Learners read colored words and are asked to say th

In this activity, learners will explore the ways natural materials can produce sounds. Appropriate for any age, learners can make individual music or create a symphony with others.

This activity is a sensory experience that recreates the sounds of a pond at night.

In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

In this optics activity, learners conduct an experiment to find out why two eyes are better than one!

This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

In this activity, learners overlap the three primary colors to see how all other colors are made.

In this activity (12th activity on the page), learners conduct an experiment to demonstrate how muscles are constantly feeding information to the brain about what they are doing.

We listen to stereo music systems, tv's, and radios because it simulates being where the sound originates.

In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.

In this activity, learners create a water prism to break light into the seven colors of the rainbow.

In this optics activity, learners use glass and water to demonstrate total internal reflection (TIR).

This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.